Product Details

1S battery voltage indicator display 3.7 to 4.2V

Warm sound tips: This model is not waterproof. If it is used outdoors, please waterproof it, because electronic components should be used in a dry environment.
Lithium lead acid battery NiMH battery display board.
How to use: connect the positive and negative terminals of the display board to the positive and negative terminals of the battery under the test. Digital tube displays real-time battery.
Power supply display parameter:

Battery voltage is greater than N × 3.3v, clear 1 mains supply (Note: N is the number of battery segments) (the following data is a reference value, there will be about 2% error range, do not shoot with high accuracy)
Battery voltage is greater than N × 3.5 v, bright 2 grids
Battery voltage is greater than N × 3.7 v, bright 3 grids
Battery voltage is greater than N × 3.9 v, bright 4 grids
Battery voltage is less than N × 3.3 v, a all four segments are off, which means that the battery is lower than 3.3 v. At this time, the battery is charged.
Digital tube color: the frame is red, the display is yellow, green and blue. The battery is fully charged.